03-04-2017, 09:38 PM
hi i am pankaj i would like to get high performance concrete seminar report
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high performance concrete seminar report and ppt
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hi i am pankaj i would like to get high performance concrete seminar report
10-04-2017, 03:33 PM
High performance concrete is a mixture of concrete, which has a high durability and high resistance compared to conventional concrete. This concrete contains one or more of cementitious materials such as fly ash, silica fume or ground granulated blast furnace slag and usually a superplasticizer. The term "high performance" is somewhat pretentious because the essential feature of this concrete is that its ingredients and proportions are specifically chosen so that they have properties particularly appropriate for the intended use of the structure, such as high strength and low permeability. Therefore, high-performance concrete is not a special type of concrete. It comprises the same materials as conventional cement concrete. The use of some mineral and chemical additives such as silica fume and Super plasticizer increase the qualities of strength, durability and workability to a very high degree.
High-performance concrete is economical, although its initial cost is higher than conventional concrete because the use of high-performance concrete in construction improves the life of the structure and the structure suffers less damage than would reduce overall costs.
Concrete is a durable and versatile construction material. It's not just
Strong, economical and takes the form of the way it is placed, but it is also aesthetically satisfying. However, experience has shown that concrete is vulnerable to deterioration, unless precautionary measures are taken during design and production. To do this it is necessary to understand the influence of the components on the behavior of the concrete and to produce a mixture of concrete within tightly controlled tolerances.
Conventional Portland cement concrete is deficient with respect to:
• Durability in harsh environments (shorter service life and frequent maintenance)
• Construction time (lower force gain)
• Ability to absorb energy (for earthquake resistant structures)
• Repair and retrofitting of works.
Therefore it has become increasingly aware that in addition to force, there are other equally important criteria such as durability, workability and hardness. Therefore, we speak of "high performance concrete" where performance requirements may be different from high strength and may vary from application to application.
High performance concrete can be designed to provide optimized performance characteristics for a given set of load, use and exposure conditions consistent with cost, durability and durability requirements. High performance concrete requires no special ingredients or special equipment except careful design and production. High performance concrete has several advantages, such as improved durability characteristics and much less micro-curing than normal strength concrete.
Any concrete that meets certain criteria proposed to overcome the limitations of conventional concrete can be called High Yield Concrete. It may include concrete, which provides a substantially improved resistance to environmental influences or a substantially higher structural capacity, while maintaining adequate durability. It can also include concrete, which significantly reduces construction time to allow the rapid opening or reopening of roads to traffic, without compromising long-term service. Therefore, it is not possible to provide a single definition of high performance concrete without taking into account the performance requirements of the intended use of the concrete.
High-performance concrete is economical, although its initial cost is higher than conventional concrete because the use of high-performance concrete in construction improves the life of the structure and the structure suffers less damage than would reduce overall costs.
Concrete is a durable and versatile construction material. It's not just
Strong, economical and takes the form of the way it is placed, but it is also aesthetically satisfying. However, experience has shown that concrete is vulnerable to deterioration, unless precautionary measures are taken during design and production. To do this it is necessary to understand the influence of the components on the behavior of the concrete and to produce a mixture of concrete within tightly controlled tolerances.
Conventional Portland cement concrete is deficient with respect to:
• Durability in harsh environments (shorter service life and frequent maintenance)
• Construction time (lower force gain)
• Ability to absorb energy (for earthquake resistant structures)
• Repair and retrofitting of works.
Therefore it has become increasingly aware that in addition to force, there are other equally important criteria such as durability, workability and hardness. Therefore, we speak of "high performance concrete" where performance requirements may be different from high strength and may vary from application to application.
High performance concrete can be designed to provide optimized performance characteristics for a given set of load, use and exposure conditions consistent with cost, durability and durability requirements. High performance concrete requires no special ingredients or special equipment except careful design and production. High performance concrete has several advantages, such as improved durability characteristics and much less micro-curing than normal strength concrete.
Any concrete that meets certain criteria proposed to overcome the limitations of conventional concrete can be called High Yield Concrete. It may include concrete, which provides a substantially improved resistance to environmental influences or a substantially higher structural capacity, while maintaining adequate durability. It can also include concrete, which significantly reduces construction time to allow the rapid opening or reopening of roads to traffic, without compromising long-term service. Therefore, it is not possible to provide a single definition of high performance concrete without taking into account the performance requirements of the intended use of the concrete.
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